Module: Ardb::MigrationHelpers

Defined in:
lib/ardb/migration_helpers.rb

Defined Under Namespace

Modules: RecorderMixin Classes: ForeignKey

Class Method Summary collapse

Class Method Details

.drop_foreign_key(*args) ⇒ Object 



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# File 'lib/ardb/migration_helpers.rb', line 12

def drop_foreign_key(*args)
  from_table, from_column = args[0..1]
  options = args.last.kind_of?(Hash) ? args.last : {}
  fk = ForeignKey.new(from_table, from_column, nil, options)
  execute(fk.drop_sql)
end

.foreign_key(from_table, from_column, to_table, options = {}) ⇒ Object 



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# File 'lib/ardb/migration_helpers.rb', line 7

def foreign_key(from_table, from_column, to_table, options={})
  fk = ForeignKey.new(from_table, from_column, to_table, options)
  execute(fk.add_sql)
end

.remove_column_with_fk(table, column) ⇒ Object 



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# File 'lib/ardb/migration_helpers.rb', line 19

def remove_column_with_fk(table, column)
  drop_foreign_key(table, column)
  remove_column(table, column)
end